Gas-mixer for engines.



H. W. BOWMAN & J. M. HINKLE.

GAS MIXER FOR ENGINES.

AAAAAAAA ION FILED JULY26, 1913.

1,123,079. Patented Dec. 29, 1914.

azauaww. BOWMAN AND JAMES M. HINKLE, or BARIBOURVILLE, KENTUCKY.

GAS-MIXER non ENGINES.

Specification of Letters Patent.

Patented Dec.29,1914.

Application filed July 26, 1913. Serial No. 781,401.

To all whom it may concern:

Be it known that we, HENRY W. BOWMAN and JAMES M. HINKLE, citizens of the United States, residing at Barbourville, in the county of Knox and State of Kentucky, have invented certain new and useful Improvements in Gas-Mixers for Engines; and we do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters and figures of reference marked thereon, which form a part of this specification.

This invention relates to new and useful improvements in gas mixing valves adapted for use in connection with engines where gas is usually employed instead of gasolene and consists of a simple and eflicient device of this nature so arranged that it may be operated at low and high pressure and without the use of'a gasometer.

The invention comprises various details of construction and combinations and arrangements of parts which will be hereinafter fully described, shown in the accompanying drawings and then specifically defined in the appended claims.

We illustrate our invention in the accompanying drawings, in which Figure l is a central vertical sectional view longitudinally through the device, and Fig. 2 is a bottom plan view.

Reference now being had to the details of the drawings by letter, A designates the valve casing having passageways B leading therethrough with an aperture 0 in the partition therein, which is regulated by a check valve D, having a stem D which is movable within the chamber Emf the plug valve E, which latter fits within the threaded opening in the valve casing. An air inlet opening H, the cross-sectional area of which is larger than that of the aperture C, is formed in the bottom of the casing and is regulated by a disk valve I mounted upon a stem K which projects through an aperture N in a guiding strip N underneath the valve, said valve I having a boss or projection I upon one face and adapted to contact with the valve D to cause the latter to unjieah d db 1 t L tll ate, esignate y et er ,is pivo a y moun ted upon a pin L fastened to the bottom of the casing and has a notch M formed in one edge thereof adapted to receive the stem projecting through the guide strip, and a handle T projects from said gate forming a convenient means whereby the latter may be swung upon its pivot to regulate the amount of air being fed into the interior of the casing.

The operation of our invention will be readily understood and is as follows :-VVhen the piston of an engine to which the device is adapted to be attached forms a suction, a charge of air is drawn in through the opening regulated by the disk valve, the quantity of air being regulated by the gate and becomes mixed with the gas within the casing. The suction from the engine will cause the air valve to rise and, being in contact with the check valve, will cause the latter to rise from its seat to allow the gas to pass through the aperture in the partition of the casing and mix with the air, the air and gas being thoroughly mixed before they reach the cylinder of the engine.

By the provision of a device embodying the features of our invention adapted especially for use in connection with engines above eight horse power, it will be noted that a convenient means is provided whereby the user may regulate the air by the manipulation of the and the valr e without the necessity of locking the valve.

What we claim to be new is 1. A gas mixing device, including a casing having a main gas inlet and a mixture outlet and provided with an apertured partition, said casing being further provided with an air admitting port in axial alinement with the aperture of the partition, a check valve controlling the aperture of the partition, a second valve controlling the air port and in engagement with the check valve, whereby as the second valve is unseated, the check valve is also unseated, and a gate for regulating the area of the air port.

2. A gas mixing device, including a casing provided with a main gas inlet and a mixture outlet and having an apertured partition, said casing also being provided with an air admitting port in axial alinement withthe apertured partition, a check valve controlling the aperture of the partition, a second valve controlling the air port and in engagement with the check valve, whereby as the second valve is unseated, the check handle regulating the gate valve is also unseated, a stem carried by the second valve and projecting below the casing, a pivoted gate for varying the air portage mounted upon the lower part of the casing and having a slot for the reception of said stem, and a handle projecting from the gate for operating the same.

In testimony whereof we hereunto aifix our signatures in presenceof two witnesses.

HENRY W. BOWMAN. JAMES M. HINKLE.

Witnesses:

A. D. SMITH, ROBERT W. COLE.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of latents, Washington, D. 0. v 

